Welcome to Control.com, the global online community of automation professionals.
Control.com - Nerds in Control
Member Login
Search
Jump to a Date
Sponsored Communities
Cool stuff
Twitter Feed
Neat Stuff
Visit our shop for nerds in control lifestyle products.
Thermal Overload
The threads that wouldn't die...
- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
Fortune
A fanatic is one who can't change his mind and won't change the
subject.
-- Winston Churchill
subject.
-- Winston Churchill
RSS Feed
Use this link to get an RSS feed of the Control.com article flow, for private, non-commercial use only:www.control.com/rss/
To get a personalized feed, become a member at no cost.
Generating electricity from rain
New Replies:
By Keith Hogan on 21 October, 2009 - 12:25 pm -
Of course, you can make the generation of power from rainfall quite cost effective. You just have...
Robert,
Good! What about wind turbines? Are they more economical?...
By Phil Corso on 20 October, 2009 - 11:48 pm -
Robert, give the guy a break... I believe you have confused water (plenty of that here in Florida)...
By Mike D on 20 October, 2009 - 10:47 pm -
> Well, let's run some numbers. A really big rain storm is 2 inches. <
--- snip ---
a...
By Robert Scott on 20 October, 2009 - 7:48 pm -
Well, let's run some numbers. A really big rain storm is 2 inches. A fairly big house has 2000...
A computer virus caused serious problems recently for an Australian electric utility.
New Replies:
How about this design?
All terminals and servers on the SCADA network runs Linux, with operator...
By M Griffin on 16 October, 2009 - 5:06 pm -
In reply to curt wuollet: Most of the rationals for connecting business and control networks seems...
By M Griffin on 16 October, 2009 - 4:37 pm -
In reply to Matt Warshawsky: I don't want to flog this issue to death, but there are a couple of...
By Matt Warshawsky on 15 October, 2009 - 4:24 pm -
It was never my intention to simply pass the same traffic over serial, but instead to use a simple...
By M Griffin on 15 October, 2009 - 2:06 pm -
In reply to Matt Warshawsky: I don't think we need to go to the lengths of installing serial...
Michael,
I think that I am more or less in agreement with your sentiment. The problem I have is...
By Andrey Romanenko on 15 October, 2009 - 8:08 am -
>OK, here is an idea to solve the problem: instead of connecting the business network and the...
By Matt Warshawsky on 15 October, 2009 - 3:32 am -
OK, here is an idea to solve the problem: instead of connecting the business network and the...
By Matt Warshawsky on 15 October, 2009 - 3:18 am -
Yes, you are correct on everything you said. In my opinion, the reason there are so many security...
By M Griffin on 14 October, 2009 - 8:19 pm -
In reply to DaveMH: You said: "Ultimately the responsibility for security lies with those on...
Coolant (Glycol) contamination with engine oil
Generator syncing issues, MVAR spike, voltage mismatch at sync
New Replies:
I think the term spiked condition, may be taken as maxed. It goes really high comparable to the...
By jojo on 21 October, 2009 - 2:13 am -
Phil,
the point I am banking on is that brw stated that once synchronised, the generator goes to...
By Phil Corso on 20 October, 2009 - 7:56 pm -
Correction to my 20-Oct-09 (12:18) post (my apologies to those uncomfortable w/equations):
H)...
We are comparing between the low voltge side of the GSU and the Transmission line....
By Phil Corso on 20 October, 2009 - 12:18 pm -
Jojo, while I agree there are several possibilities OOP is high on my list of for the following...
By jojo on 20 October, 2009 - 1:27 am -
Brw,
If your generator is going to full VARS and remaining there for 1hr, my first question is...
By Phil Corso on 19 October, 2009 - 7:16 pm -
Romulo Rodriguez... Typically the same protective relaying job can have PTs with different ratios...
By Romulo Rodriguez on 19 October, 2009 - 2:40 pm -
Do all PT's have same reading?
...
By Phil Corso on 19 October, 2009 - 12:59 pm -
It appears that the two source PTs supplying voltage signals to the synchronizer are improperly...
Thanks for your reply.
They are experiencing a voltage mismatch between the Gen field volts and...
> Has problem appeared recently, or has it been present since commissioning of the two units?...
By Phil Corso on 18 October, 2009 - 5:08 pm -
Has problem appeared recently, or has it been present since commissioning of the two units?
...
By jojo on 18 October, 2009 - 10:01 am -
Unfortunately not much info in your thread to permit one to give you specific answers, however here...
determining the size of the DC circuit breaker between the charge controller and the batteries
How to improve my steam generator control system.
New Replies:
Because of load rejection from the grid, it can operate on islanding, provided your auxiliary...
why the voltage transformers are open delta connected in a GE design
New Replies:
By Phil Corso on 21 October, 2009 - 12:07 am -
Serp1981...
Reur your question about open-delta xfmrs...
the reason is economic, that is, only...
How would you connect the potential transformers (I'm presuming you're talking about the ones used...
Two questions regarding base load plants
New Replies:
By Nuke27 on 20 October, 2009 - 7:54 pm -
I am currently working on grid stability study for a US nuclear project. Can you advise me on the...
How to change operation between motor, and generator?
What is the formula for FSRT calculation in MARK IV?
New Replies:
Dear CSA,
I've gone through all of your links and posts relating to +TTRX and FSRT but I didn't...
Is there a way to call or set variables in the PID_ISA block from cimplicity like the Integral or Proportion ?
How to prepare to install sppa t3000 DCS
Could someone explain whether variable speed with a single-shaft gas turbine is permitted while the generator is producing power?
New Replies:
CSA,
when you said: "If the fuel is less than required to keep the turbine/generator shaft...
F = (P * N) / 120
F = Frequency
P = Number of poles of generator
N = RPM of generator...
where can I find this?
New Replies:
By Phil Corso on 16 October, 2009 - 10:44 am -
Christina... of course the best data comes from the manufacturer.
If unavailable, then go with...
How do governors and load share devices know what level to set?
New Replies:
By Tony Manton on 16 October, 2009 - 4:42 am -
For analogue load share lines, the device connected to the lines is a wheatstone bridge of...
New MKVI Installation
windbox pressure and flame scanner cooling fan pressure
New Replies:
By avijit on 15 October, 2009 - 9:19 am -
hi,
at the outset of this mail i just want to share some of my knowledge.
if u have any...
ALSPA P320 Documentation are required.
New Replies:
By leo on 15 October, 2009 - 2:04 am -
Could you send me Alspa p320 manuals to my mail
vileo-kh [at] yandex.ru
Thank you for help.
...
Your use of this site is subject to the terms and conditions set forth under Legal Notices and the Privacy Policy. Please read those terms and conditions carefully. Subject to the rights expressly reserved to others under Legal Notices, the content of this site and the compilation thereof is © 1999-2009 Nerds in Control, LLC. All rights reserved.
Our Advertisers
Help keep our servers running...
Patronize our advertisers!
Patronize our advertisers!